Question

A thin balloon filled with air at 47c° has a volume of 3 litre. If on placing it in a cooled room it's volume become 2.7 litre. The temperature of room is what

Answer 1

Answer:

Using the charle's law

Answer 2

Answer:

$T_{2}=288\ kelvin$

Explanation:

since we know the Charles law of ideal gas which states that "volume of gas is directly proportional to the temperature of the gas" provided the pressure remains constant. when pressure remains constant process is know as isobaric.

$V\alpha T$.......................(1)

for two process when we applied the Charles law then,

$\frac{V_{1} }{V_{2} }=\frac{T_{1} }{T_{2} }$...............(2)

we have $V_{1}=3\ l, V_{2}=2.7\ l,T_{1}=320,T_{2}=?$

So, using (2) we get,

$\frac{3}{2.7}=\frac{320}{T_{2} }$

So, $T_{2}=288\ kelvin$